Xenon (Xe)

Xenon is the 54th element in the periodic table and has a symbol of Xe and atomic number of 54. It has an atomic weight of 131.293 and a mass number of 132. Xenon has fifty-four protons and seventy-eight neutrons in its nucleus, and fifty-four electrons in five shells. It is located in group eighteen, period five and block p of the periodic table. Colourless, odourless gas belonging to group 18 on the periodic table (the noble gases.) Nine natural isotopes and seven radioactive isotopes are known. Xenon was part of the first noble-gas compound synthesized. Several others involving Xenon have been found since then. Xenon was discovered by Ramsey and Travers in 1898.

Atomic Number	54
Atomic Weight	131.293
Mass Number	132

Group	18
Period	5
Block	p

Protons	54 p⁺
Neutrons	78 n⁰
Electrons	54 e^-

Physical Properties

Atomic Radius	232 pm
Molar Volume	42.9 cm³/mol
Covalent Radius	131 pm 135 pm 122 pm 140 pm
Metallic Radius
Ionic Radius	40 pm 48 pm
Crystal Radius	54 pm 62 pm
Van der Waals Radius	216 pm 216 pm 228 pm 440.4 pm
Density	0.005366 g/cm³

Chemical Properties

Energy

Proton Affinity	499.6 kJ/mol
Electron Affinity	-0.056 eV/particle
Ionization Energy	12.1298431 eV/particle 20.975 eV/particle 31.05 eV/particle 42.2 eV/particle 54.14 eV/particle 66.703 eV/particle 91.6 eV/particle 105.9778 eV/particle 179.84 eV/particle 202 eV/particle 229.02 eV/particle 255 eV/particle 281 eV/particle 314 eV/particle 343 eV/particle 374 eV/particle 404 eV/particle 430 eV/particle 549 eV/particle 582 eV/particle 616 eV/particle 650 eV/particle 700 eV/particle 736 eV/particle 818 eV/particle 857.03 eV/particle 1,493 eV/particle 1,571 eV/particle 1,653 eV/particle 1,742 eV/particle 1,826 eV/particle 1,919 eV/particle 2,023 eV/particle 2,113 eV/particle 2,209 eV/particle 2,300 eV/particle 2,556 eV/particle 2,637 eV/particle 2,726 eV/particle 2,811 eV/particle 2,975 eV/particle 3,068 eV/particle 3,243 eV/particle 3,333.8 eV/particle 7,660 eV/particle 7,889 eV/particle 8,144 eV/particle 8,382 eV/particle 8,971 eV/particle 9,243 eV/particle 9,581 eV/particle 9,810.4 eV/particle 40,271.722 eV/particle 41,299.71 eV/particle

Heat of Vaporization	12.65 kJ/mol
Heat of Fusion
Heat of Formation
Electrons

Electron Shells	2, 8, 18, 18, 8

Valence Electrons	8 ⓘ

Electron Configuration	[Kr] 4d¹⁰ 5s² 5p⁶ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 4d¹⁰ 5s² 5p⁶

Oxidation States	0, 2, 4, 6, 8
Electronegativity	15.27 eV/particle 0.2333511 2.6
Electrophilicity Index	1.4953590614035728 eV/particle
States of Matter

Phase	Gas
Gas Phase	Monoatomic
Boiling Point	165.051 K
Melting Point	161.4 K
Critical Pressure	5.842 MPa
Critical Temperature	289.733 K
Triple Point	161.405 K 81.77 kPa
Visual
Xenon is a Colorless. Xe has a CPK of #ff1493, Jmol of #429eb0, and MOLCAS GV of #429eb0. The Appearance of Element 54 is colorless gas, exhibiting a blue glow when placed in a high voltage electric field. The Refractive Index of Xenon (Xe) is 1.000702.
Color	Colorless #ff1493 #429eb0 #429eb0
Appearance	colorless gas, exhibiting a blue glow when placed in a high voltage electric field
Refractive Index	1.000702
Thermodynamic Properties
Thermal Conductivity	0.0057 W/(m K)
Thermal Expansion
Molar Heat Capacity	20.786 J/(mol K)
Specific Heat Capacity	0.158 J/(g⋅K)
Heat Capacity Ratio (Adiabatic Index)	5/3
Electrical Properties
Type
Electrical Conductivity
Electrical Resistivity
Superconducting Point
Magnetism
Type	diamagnetic
Magnetic Susceptibility (Mass)	-0.0000000043 m³/Kg
Magnetic Susceptibility (Molar)	-0.000000000565 m³/mol
Magnetic Susceptibility (Volume)	-0.0000000254
Magnetic Ordering
Curie Point
Neel Point
Structure
The Crystal Structure of Xenon is FCC. The lattice constant of Xe is 6.2 Å. The lattice angles of Element 54 are π/2, π/2, π/2.
Crystal Structure	Face Centered Cubic (FCC)
Lattice Constant	6.2 Å
Lattice Angles	π/2, π/2, π/2
Mechanical Properties
The Speed of Sound of Xenon is 1090 m/s.
Hardness
Bulk Modulus
Shear Modulus
Young's Modulus
Poisson Ratio
Speed of Sound	1,090 m/s
Classification
The CAS Group of Xenon is VIII. The IUPAC Group of Xe is VIIIA. The Glawe Number of Element 54 is 5. The Mendeleev Number of Xenon (Xe) is 116. The Pettifor Number of Xenon is 5. The Geochemical Class of Xe is volatile. The Goldschmidt Class of Element 54 is atmophile.
Category	Noble gases, Noble gases
CAS Group	VIII
IUPAC Group	VIIIA
Glawe Number	5
Mendeleev Number	116
Pettifor Number	5
Geochemical Class	volatile
Goldschmidt Class	atmophile

Other

The Gas Basicity of Xenon is 478.1 kJ/mol. The Dipole Polarizability of Xe is 27.32 plus or minus 0.2 a₀. Element 54 has a C6 Dispersion Coefficient (GB) of 302 a₀. The Allotropes of Xenon (Xe) is . The Neutron Cross Section of Xenon is 25. The Neutron Mass Absorption of Xe is 0.0083. The Quantum Numbers of Element 54 is 1S0. The Space Group of Xenon (Xe) is 225 (Fm_3m).

Gas Basicity	478.1 kJ/mol
Dipole Polarizability	27.32 ± 0.2 a₀
C6 Dispersion Coefficient	302 a₀
Allotropes
Neutron Cross Section	25
Neutron Mass Absorption	0.0083
Quantum Numbers	1S0
Space Group	225 (Fm_3m)

Isotopes of Xenon

Stable Isotopes	5
Unstable Isotopes	38
Natural Isotopes	9

¹⁰⁸Xe

Mass Number	108
Neutron Number	54
Relative Atomic Mass	107.954232285 ± 0.000407406 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	72 ± 35 us
Spin	0
Quadrupole Moment	0
Discovery Year	2018
Parity	+

Decay Mode	Intensity
α (α emission)	100%

¹⁰⁹Xe

Mass Number	109
Neutron Number	55
Relative Atomic Mass	108.950434955 ± 0.000322178 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	13 ± 2 ms
Spin	7/2
Quadrupole Moment
Discovery Year	2006
Parity	+

Decay Mode	Intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)

¹¹⁰Xe

Mass Number	110
Neutron Number	56
Relative Atomic Mass	109.944258759 ± 0.000108415 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	93 ± 3 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1981
Parity	+

Decay Mode	Intensity
α (α emission)	64%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	36%
β⁺ p (β⁺-delayed proton emission)

¹¹¹Xe

Mass Number	111
Neutron Number	57
Relative Atomic Mass	110.94147 ± 0.000124 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	740 ± 200 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1979
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	89.6%
α (α emission)	10.4%
β⁺ p (β⁺-delayed proton emission)

¹¹²Xe

Mass Number	112
Neutron Number	58
Relative Atomic Mass	111.935559068 ± 0.000008891 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	2.7 ± 0.8 s
Spin	0
Quadrupole Moment	0
Discovery Year	1978
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	98.8%
α (α emission)	1.2%
β⁺ p (β⁺-delayed proton emission)

¹¹³Xe

Mass Number	113
Neutron Number	59
Relative Atomic Mass	112.933221663 ± 0.000007342 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	2.74 ± 0.08 s
Spin	5/2
Quadrupole Moment
Discovery Year	1973
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)
β⁺ p (β⁺-delayed proton emission)	7%
β⁺α (β⁺-delayed α emission)	0.007%

¹¹⁴Xe

Mass Number	114
Neutron Number	60
Relative Atomic Mass	113.927980329 ± 0.000012 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	10 ± 0.4 s
Spin	0
Quadrupole Moment	0
Discovery Year	1977
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹¹⁵Xe

Mass Number	115
Neutron Number	61
Relative Atomic Mass	114.926293943 ± 0.000013 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	18 ± 3 s
Spin	5/2
Quadrupole Moment
Discovery Year	1969
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	0.34%

¹¹⁶Xe

Mass Number	116
Neutron Number	62
Relative Atomic Mass	115.921580955 ± 0.000013974 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	59 ± 2 s
Spin	0
Quadrupole Moment	0
Discovery Year	1969
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹¹⁷Xe

Mass Number	117
Neutron Number	63
Relative Atomic Mass	116.920358758 ± 0.000011141 Da
G-Factor	-0.23752 ± 0.0006
Abundance
Radioactivity	☢️ Radioactive
Half Life	61 ± 2 s
Spin	5/2
Quadrupole Moment	1.1 ± 0.4
Discovery Year	1969
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	0.0029%

¹¹⁸Xe

Mass Number	118
Neutron Number	64
Relative Atomic Mass	117.916178678 ± 0.000011141 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	3.8 ± 0.9 m
Spin	0
Quadrupole Moment	0
Discovery Year	1965
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹¹⁹Xe

Mass Number	119
Neutron Number	65
Relative Atomic Mass	118.915410641 ± 0.000011141 Da
G-Factor	-0.26168 ± 0.0006
Abundance
Radioactivity	☢️ Radioactive
Half Life	5.8 ± 0.3 m
Spin	5/2
Quadrupole Moment	1.29 ± 0.05
Discovery Year	1965
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
e⁺ (positron emission)	79%
ϵ (electron capture)	21%

¹²⁰Xe

Mass Number	120
Neutron Number	66
Relative Atomic Mass	119.911784267 ± 0.000012686 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	46 ± 0.6 m
Spin	0
Quadrupole Moment	0
Discovery Year	1965
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²¹Xe

Mass Number	121
Neutron Number	67
Relative Atomic Mass	120.911453012 ± 0.000010995 Da
G-Factor	-0.2804 ± 0.0012
Abundance
Radioactivity	☢️ Radioactive
Half Life	40.1 ± 2 m
Spin	5/2
Quadrupole Moment	1.31 ± 0.05
Discovery Year	1952
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²²Xe

Mass Number	122
Neutron Number	68
Relative Atomic Mass	121.908367655 ± 0.000011928 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	20.1 ± 0.1 h
Spin	0
Quadrupole Moment	0
Discovery Year	1952
Parity	+

Decay Mode	Intensity
ϵ (electron capture)	100%

¹²³Xe

Mass Number	123
Neutron Number	69
Relative Atomic Mass	122.908482235 ± 0.000010234 Da
G-Factor	-0.3 ± 0.006
Abundance
Radioactivity	☢️ Radioactive
Half Life	2.08 ± 0.02 h
Spin	1/2
Quadrupole Moment	0
Discovery Year	1952
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁴Xe

Mass Number	124
Neutron Number	70
Relative Atomic Mass	123.905885174 ± 0.000001457 Da
G-Factor	0
Abundance	0.095 ± 0.005
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1922
Parity	+

Decay Mode	Intensity
2β⁺ (double β⁺ decay)

¹²⁵Xe

Mass Number	125
Neutron Number	71
Relative Atomic Mass	124.90638764 ± 0.000001518 Da
G-Factor	-0.538 ± 0.006
Abundance
Radioactivity	☢️ Radioactive
Half Life	16.87 ± 0.08 h
Spin	1/2
Quadrupole Moment	0
Discovery Year	1950
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁶Xe

Mass Number	126
Neutron Number	72
Relative Atomic Mass	125.904297422 ± 0.000000006 Da
G-Factor	0
Abundance	0.089 ± 0.003
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1922
Parity	+

Decay Mode	Intensity
2β⁺ (double β⁺ decay)

¹²⁷Xe

Mass Number	127
Neutron Number	73
Relative Atomic Mass	126.905183636 ± 0.000004388 Da
G-Factor	-1.0066 ± 0.0022
Abundance
Radioactivity	☢️ Radioactive
Half Life	36.342 ± 0.003 d
Spin	1/2
Quadrupole Moment	0
Discovery Year	1950
Parity	+

Decay Mode	Intensity
ϵ (electron capture)	100%

¹²⁸Xe

Mass Number	128
Neutron Number	74
Relative Atomic Mass	127.90353075341 ± 0.00000000558 Da
G-Factor	0
Abundance	1.91 ± 0.013
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1922
Parity	+

¹²⁹Xe

Mass Number	129
Neutron Number	75
Relative Atomic Mass	128.90478085742 ± 0.00000000542 Da
G-Factor	-1.555922 ± 0.000032
Abundance	26.401 ± 0.138
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	1/2
Quadrupole Moment	0
Discovery Year	1920
Parity	+

¹³⁰Xe

Mass Number	130
Neutron Number	76
Relative Atomic Mass	129.903509346 ± 0.00000001 Da
G-Factor	0
Abundance	4.071 ± 0.022
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1922
Parity	+

¹³¹Xe

Mass Number	131
Neutron Number	77
Relative Atomic Mass	130.90508412808 ± 0.00000000549 Da
G-Factor	0.46123 ± 0.0000046666666666667
Abundance	21.232 ± 0.051
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	3/2
Quadrupole Moment	-0.114 ± 0.001
Discovery Year	1920
Parity	+

¹³²Xe

Mass Number	132
Neutron Number	78
Relative Atomic Mass	131.90415508346 ± 0.00000000544 Da
G-Factor	0
Abundance	26.909 ± 0.055
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

¹³³Xe

Mass Number	133
Neutron Number	79
Relative Atomic Mass	132.905910748 ± 0.000002576 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	5.2474 ± 0.0005 d
Spin	3/2
Quadrupole Moment	0.14 ± 0.005
Discovery Year	1940
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

¹³⁴Xe

Mass Number	134
Neutron Number	80
Relative Atomic Mass	133.90539303 ± 0.000000006 Da
G-Factor	0
Abundance	10.436 ± 0.035
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

Decay Mode	Intensity
2β⁻ (double β⁻ decay)

¹³⁵Xe

Mass Number	135
Neutron Number	81
Relative Atomic Mass	134.907231441 ± 0.000003938 Da
G-Factor	0.60213333333333 ± 0.00046666666666667
Abundance
Radioactivity	☢️ Radioactive
Half Life	9.14 ± 0.02 h
Spin	3/2
Quadrupole Moment	0.21 ± 0.007
Discovery Year	1940
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

¹³⁶Xe

Mass Number	136
Neutron Number	82
Relative Atomic Mass	135.907214474 ± 0.000000007 Da
G-Factor	0
Abundance	8.857 ± 0.072
Radioactivity	☢️ Radioactive
Half Life	2.18 ± 0.05 Zy
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

Decay Mode	Intensity
2β⁻ (double β⁻ decay)	100%

¹³⁷Xe

Mass Number	137
Neutron Number	83
Relative Atomic Mass	136.911557771 ± 0.000000111 Da
G-Factor	-0.27725714285714 ± 0.00028571428571429
Abundance
Radioactivity	☢️ Radioactive
Half Life	3.818 ± 0.013 m
Spin	7/2
Quadrupole Moment	-0.47 ± 0.02
Discovery Year	1943
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

¹³⁸Xe

Mass Number	138
Neutron Number	84
Relative Atomic Mass	137.914146268 ± 0.00000301 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	14.14 ± 0.07 m
Spin	0
Quadrupole Moment	0
Discovery Year	1943
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

¹³⁹Xe

Mass Number	139
Neutron Number	85
Relative Atomic Mass	138.9187922 ± 0.0000023 Da
G-Factor	-0.20266666666667 ± 0.0010666666666667
Abundance
Radioactivity	☢️ Radioactive
Half Life	39.68 ± 0.14 s
Spin	3/2
Quadrupole Moment	0.39 ± 0.02
Discovery Year	1951
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

¹⁴⁰Xe

Mass Number	140
Neutron Number	86
Relative Atomic Mass	139.921645814 ± 0.0000025 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	13.6 ± 0.1 s
Spin	0
Quadrupole Moment	0
Discovery Year	1951
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

¹⁴¹Xe

Mass Number	141
Neutron Number	87
Relative Atomic Mass	140.926787181 ± 0.0000031 Da
G-Factor	0.004 ± 0.0012
Abundance
Radioactivity	☢️ Radioactive
Half Life	1.73 ± 0.01 s
Spin	5/2
Quadrupole Moment	-0.57 ± 0.02
Discovery Year	1951
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.044%

¹⁴²Xe

Mass Number	142
Neutron Number	88
Relative Atomic Mass	141.929973095 ± 0.0000029 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	1.23 ± 0.02 s
Spin	0
Quadrupole Moment	0
Discovery Year	1960
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.37%

¹⁴³Xe

Mass Number	143
Neutron Number	89
Relative Atomic Mass	142.93536955 ± 0.000005 Da
G-Factor	-0.184 ± 0.0008
Abundance
Radioactivity	☢️ Radioactive
Half Life	511 ± 6 ms
Spin	5/2
Quadrupole Moment	0.91 ± 0.03
Discovery Year	1951
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1%

¹⁴⁴Xe

Mass Number	144
Neutron Number	90
Relative Atomic Mass	143.938945076 ± 0.0000057 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	388 ± 7 ms
Spin	0
Quadrupole Moment	0
Discovery Year	2003
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	3%

¹⁴⁵Xe

Mass Number	145
Neutron Number	91
Relative Atomic Mass	144.944719631 ± 0.000012 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	188 ± 4 ms
Spin	3/2
Quadrupole Moment
Discovery Year	2003
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	5%
2n (2-neutron emission)

¹⁴⁶Xe

Mass Number	146
Neutron Number	92
Relative Atomic Mass	145.948518245 ± 0.000026 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	146 ± 6 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1989
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6.9%

¹⁴⁷Xe

Mass Number	147
Neutron Number	93
Relative Atomic Mass	146.954482 ± 0.000215 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	88 ± 14 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1994
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	8%
2n (2-neutron emission)

¹⁴⁸Xe

Mass Number	148
Neutron Number	94
Relative Atomic Mass	147.958508 ± 0.000322 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	85 ± 15 ms
Spin	0
Quadrupole Moment	0
Discovery Year	2010
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁴⁹Xe

Mass Number	149
Neutron Number	95
Relative Atomic Mass	148.964573 ± 0.000322 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	3/2
Quadrupole Moment
Discovery Year	2018
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁵⁰Xe

Mass Number	150
Neutron Number	96
Relative Atomic Mass	149.968878 ± 0.000322 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	2018
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

History

Xenon was discovered in England by the Scottish chemist William Ramsay and English chemist Morris Travers in 1898. They found xenon in the residue left over from evaporating components of liquid air. Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element. From the Greek word xenon, stranger

Discoverers	Sir William Ramsay; M. W. Travers
Discovery Location	England
Discovery Year	1898
Etymology (Name Origin)	Greek: xenos (strange).
Pronunciation	ZEE-non (English)

Xenon is not toxic, but its compounds are highly toxic

If inhaled, xenon can cause a person's voice to deepen

Uses

Xenon is used in flash lamps and arc lamps, and in photographic flashes. Xenon is used in medicine as a general anesthetic and in medical imaging. In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable. Used for filling flash lamps and other powerful lamps. Electrical excitation of xenon produces a burst of brilliant whtie light. Also used in bubble chambers and modern nuclear power reactors.

Sources

Obtain from the small quantities in liquid air.

Abundance
Abundance in Earth's crust	0.00003 mg/kg
Natural Abundance (Oceans)	0.00005 mg/L
Natural Abundance (Human Body)
Natural Abundance (Meteor)
Natural Abundance (Sun)
Abundance in Universe	0.000001 %

Nuclear Screening Constants

1	s	1.0785
2	p	4.1654
2	s	14.197
3	d	14.0532
3	p	18.3324
3	s	18.4236
4	d	32.1068
4	p	29.0428
4	s	27.8272
5	p	41.5755
5	s	39.782

Also Known As

Xe
element 54
54Xe

Translations

Norwegian Bokmålxenon
Frenchxénon
Italianxeno
Norwegian Nynorskxenon
Swedishxenon
Danishxenon
GermanXenon
Hungarianxenon
Polishksenon
Afrikaansxenon
Amharicዜኖን
AragoneseXenón
Arabicزينون
AzerbaijaniKsenon
Belarusianксенон
Bulgarianксенон
Banglaজেনন
BretonKsenon
Bosnianksenon
Catalanxenó
CorsicanXenu
Czechxenon
ChuvashКсенон
WelshSenon
Greekξένο
Esperantoksenono
Spanishxenón
EstonianKsenoon
Basquexenon
Persianزنون
Finnishksenon
FriulianXenon
IrishXeanón
Galicianxenon
GuaraniTatapytagua
ManxXenon
Hebrewקסנון
Hindiज़ेनान
Fiji HindiXenon
CroatianKsenon
Armenianքսենոն
Interlinguaxenon
Indonesianxenon
Idoxenono
Icelandicxenon
Japaneseキセノン
Lojbanfangynavni
JavaneseXenon
Georgianქსენონი
KazakhКсенон
Kannadaಝೆನಾನ್
Korean제논
KomiКсенон
Latinxenon
LuxembourgishXenon
LimburgishXenon
LigurianSeno
LithuanianKsenonas
Latvianksenons
Macedonianксенон
Malayalamസെനൊൺ
Marathiझेनॉन
Western MariКсенон
Malayxenon
Burmeseဇီနွန်
Low GermanXenon
Dutchxenon
OccitanXenon
Portuguesexenón
QuechuaSenun
Romanianxenon
Russianксенон
Sicilianxenon
Serbo-CroatianKsenon
Slovakxenón
SlovenianKsenon
Serbianксенон
Saterland FrisianXenon
SwahiliXenoni
Tamilசெனான்
Thaiซีนอน
TagalogHenon
TurkishKsenon
Uyghurكسېنون
Ukrainianксенон
Urduزینون
UzbekKsenon
VepsKsenon
Vietnamesexenon
WarayXenon
KalmykКсенөн
Yiddishקסענאן
YorubaKsenon
Chinese氙
CebuanoXenon
Central Kurdishزێنۆن
Odiaଜେନନ
Gujaratiઝેનોન
Punjabiਜ਼ੀਨਾਨ
Tatarксенон
Scotsxenon
SomaliSiinoon
PiedmonteseXénon
ErzyaКсенон
Literary Chinese氙
Cantonese氙
Belarusian (Taraskievica orthography)ксэнон
AlbanianKsenoni
AromanianXenon
Western Frisianksenon
KyrgyzКсенон
Church SlavicѮєнонъ
cdoSă̤
Portuguese (Brazil)xenônio
Maltesekseno
AsturianXenón
LombardXenon
Scottish GaelicSenon
Gan Chinese氙
Hakka ChineseXenon
Teluguజెనాన్
Min Nan ChineseXenon
Mongolianксенон
Tibetanཛེན་རླུང་།
Bhojpuriजेनॉन
Tajikксенон
Tatar (Cyrillic)ксенон
kbpSɛnɔɔ
Lingua Franca Novaxenon
oloKsenon
Newariजेनन
Sanskritजेनन
Nepaliजेनन
Paliजेनन
Northern FrisianKseenon
Wu Chinese氙
Chinese (Traditional)氙
Chinese (Taiwan)氙
SardinianXenòn
Moroccan Arabicݣزينون
German (Switzerland)Xenon
English (Canada)Xenon
English (United Kingdom)xenon
MinangkabauSenon
Egyptian Arabicزينون
Pashtoزېنون
BikolXenon
Western Panjabiزینون
Manipuriꯖꯦꯅꯣꯟ
CornishKsenon
BalineseXénon
SundaneseXénon
FaroeseXenon
Malay (Arabic)زينون
ZuluIXhwe

Xenon on ChemicalAid

ATC code	N01AX15
Art & Architecture Thesaurus ID	300380341
Australian Educational Vocabulary ID	scot/3598
BNCF Thesaurus ID	38976
Bibliothèque nationale de France ID	12144893f
CAB ID	224864
CAS Registry Number	7440-63-3
ChEBI ID	49957
ChEMBL ID	CHEMBL1236802
ChemSpider ID	22427
DSSTOX compound identifier	DTXCID5047665
DSSTox substance ID	DTXSID5064700
DeCS ID	15377
Den Store Danske ID	xenon
DrugBank ID	13453
ECHA Substance Infocard ID	100.028.338
Encyclopædia Britannica Online ID	science/xenon
Encyclopædia Universalis ID	xenon
Freebase ID	/m/025sqqf
French Vikidia ID	Xénon
GND ID	4190373-0
Great Russian Encyclopedia Online ID	2638924
ICSC ID	0609
InChI	InChI=1S/Xe
InChIKey	FHNFHKCVQCLJFQ-UHFFFAOYSA-N
KBpedia ID	Xenon
KEGG ID	C13373
LEM ID	LEM201009325
Library of Congress authority ID	sh85148790
MeSH descriptor ID	D014978
NDF-RT ID	N0000147400
NDL Authority ID	00575282
NKCR AUT ID	ph127505
Namuwiki ID	제논(원소)
National Library of Israel J9U ID	987007529623105171
OmegaWiki Defined Meaning	159848
OpenAlex ID	C548442186
PDB ligand ID	XE
PDB structure ID	1C6E
PDB structure ID	1C6H
PDB structure ID	1O75
PDB structure ID	1KQN
PDB structure ID	3MOU
PDB structure ID	3LZY
PDB structure ID	1L0Z
PDB structure ID	1UO6
PDB structure ID	1E9V
PDB structure ID	2IC0
PDB structure ID	4PWB
PDB structure ID	1I4W
PDB structure ID	3TF1
PDB structure ID	3TF9
PDB structure ID	3TFE
PDB structure ID	3TFA
PDB structure ID	1NXT
PDB structure ID	1UOC
PDB structure ID	2FIC
PDB structure ID	5C2W
PDB structure ID	2B2J
PDB structure ID	2W6X
PDB structure ID	2XKH
PDB structure ID	3FGR
PDB structure ID	2IE6
PDB structure ID	1U0X
PDB structure ID	1L1G
PDB structure ID	3FBX
PDB structure ID	4O4T
PDB structure ID	3PLE
PDB structure ID	3PLG
PDB structure ID	3PLI
PDB structure ID	3PLH
PDB structure ID	3PLJ
PDB structure ID	3PLM
PDB structure ID	1C6T
PDB structure ID	1C6B
PDB structure ID	1C6N
PDB structure ID	1C6K
PDB structure ID	1C65
PDB structure ID	1C62
PDB structure ID	4NXA
PDB structure ID	4WN9
PDB structure ID	4L78
PDB structure ID	1K4K
PDB structure ID	2W6Y
PDB structure ID	1FO6
PDB structure ID	3C9I
PDB structure ID	2W72
PDB structure ID	1LLS
PDB structure ID	2W6W
PDB structure ID	2W6V
PDB structure ID	1FZI
PDB structure ID	1FZH
PDB structure ID	3PJK
PDB structure ID	3FZ6
PDB structure ID	1UYU
PDB structure ID	3CYU
PDB structure ID	1S56
PDB structure ID	1URY
PDB structure ID	2A7B
PDB structure ID	2A7C
PDB structure ID	2A7A
PDB structure ID	2A7D
PDB structure ID	3GLN
PDB structure ID	1VAU
PDB structure ID	1RJO
PDB structure ID	1W53
PDB structure ID	1VGI
PDB structure ID	2W0Q
PDB structure ID	2OQE
PDB structure ID	2OQU
PDB structure ID	3PKF
PDB structure ID	3PKG
PDB structure ID	3PK4
PDB structure ID	3PK5
PDB structure ID	3PK6
PDB structure ID	2ZFE
PDB structure ID	5BU8
PDB structure ID	3U52
PDB structure ID	1W2Z
PDB structure ID	1GKZ
PDB structure ID	1C3L
PDB structure ID	3M3D
PDB structure ID	2A9R
PDB structure ID	1J52
PDB structure ID	3PKK
PDB structure ID	3QPK
PDB structure ID	1RKY
PDB structure ID	3S33
PDB structure ID	3S39
PDB structure ID	3S38
PDB structure ID	3S3C
PDB structure ID	3S3B
PDB structure ID	3S3A
PDB structure ID	3S3D
PDB structure ID	4NWH
PDB structure ID	1UVX
PDB structure ID	1UVY
PDB structure ID	1C1M
PDB structure ID	3ZJS
PDB structure ID	3ZJR
PDB structure ID	3PKL
PDB structure ID	3PKH
PDB structure ID	4GUV
PDB structure ID	4MGH
PDB structure ID	3LS7
PDB structure ID	4WNA
PDB structure ID	1C68
PDB structure ID	1ZDM
PDB structure ID	2DKI
PDB structure ID	1UX9
PDB structure ID	3G46
PDB structure ID	4ZZB
PDB structure ID	4ZZC
PDB structure ID	3BVD
PDB structure ID	3S23
PDB structure ID	3GK9
PDB structure ID	4YLH
PDB structure ID	5A6V
PDB structure ID	2Z8Y
PDB structure ID	2Z8A
PDB structure ID	1C10
PDB structure ID	3ORD
PSH ID	5819
Probes And Drugs ID	PD071828
PubChem CID	23991
Quora topic ID	Xenon
RxNorm ID	11363
Römpp online ID	RD-24-00082
Store norske leksikon ID	xenon
Treccani ID	xeno
UMLS CUI	C0043339
UNII	3H3U766W84
USGS Thesaurus ID	1613
WordNet 3.1 Synset ID	14685453-n
YSO ID	17757
ZVG number	7540

Xenon (Xe)

Physical Properties

Chemical Properties

Other

Isotopes of Xenon

108Xe

109Xe

110Xe

111Xe

112Xe

113Xe

114Xe

115Xe

116Xe

117Xe

118Xe

119Xe

120Xe

121Xe

122Xe

123Xe

124Xe

125Xe

126Xe

127Xe

128Xe

129Xe

130Xe

131Xe

132Xe

133Xe

134Xe

135Xe

136Xe

137Xe

138Xe

139Xe

140Xe

141Xe

142Xe

143Xe

144Xe

145Xe

146Xe

147Xe

148Xe

149Xe

150Xe